Composition for removing wall-paper.



CARLETON ELLIS, 0F LARCHMONT, NEW YORK, ASSIGNOR, BY MESNE ASSIGNMENTS, TO CHADELOID CHEMICAL COMPANY, OF NEW YORK, N. Y., A CORPORATION OF WEST VIRGINIA.

COMPOSITION FOR REMOVING WALL-PAPER.

LOSLZWL.

No' Drawing.

To all whom it may concern: Be it known that I, CARLn'roN ELLIS, a citizen of the United States,'residing at Larchmont, in the county of Westchester and State of New York, have invented certain new and composition for the removal of old Wall paper from the surfaces to which it is attached, and relates particularly 'to composi-.-

tions capable 0f rapid penetration and ef: fective softening oftheadhesive' so that a plurality of coats or sheets of paper may be rapidly removed or stripped from the'vvall upon treatment With the said composition. My invention has for its obJect the production or preparation of ,a composition l ingredients Which has no appreciable action upon paint or varnish so that the composition may be.

employed Without danger of injury to paint- .ed surfaces that might be. moistened accidentally With the composition While using.

My invention comprises the use ofthree vizj-water, a penetrating agent miscible With Water .and consisting preferably of alcoholic bodies, such as methyl acetone and the like, and a, paste softening agent such as an alkali or an, acid, preferably the former.

ltzvvill-be evident that a sufficient stage of dilution of the methyl acetone and the like and similar alcoholic bodies must be secured in order to prevent action; on paint and varnish which ,'is an important consideration in the presentinvention, also in the case of I the use of an alkaline soda or caustic alkali,

it is preferable to use a quantity of saline material such as sodium chlorid, sulfate of soda and. thelike in order to repress the action of the caustic as a paint and varnish removing agent so that the composition may be used With safety forremoving all paper in proximity to painted and'varnished surfaces.

The' following. illustrates the character of 'my improved composition :-One-half gallon of methyl acetone is diluted with Water tomake one gallon, and one half ounce of commercial caustic soda is dissolved therein. To this mixtureis added one pint of glyc erin. 1

.By varying the proportion ofthe pene- Specifieati on of. Letters Patent Patented Jan. 1;, i Ell =1 Application filed September 1, 1902. Serial No. 451,168.

trating agent diflerent speeds of penetration are secured. Too great a proportion of the penetrating agent weakens the action of the adhesive softening agent.

The addition of neutral salts such as coin- .mon salt to the-composition serves to further protect finish from accidental injury. A formula illustrative of the employment of a finish-protecting ingredient comprises Water, one gallon; methyl acetone, one quart; caustic soda,-two ounces; and common salt, a quantity sufficient to saturate the mixture.

The process WlllCllI employ in the application of my improved composition consists in applying to the surface of the Wall paper by means of a brush or spraying device a sufficient amount of the removing composition to penetrate to the supporting wall; in allow-ingthe composition to act for a short time until the adhesive is softened and then stripping the coating of Wall paper from the supporting surface. Subsequently, the surface of the supporting wall may be sponged ,With Water if it is "desired to remove any traces of the removing composition.

It will be evident that various modifica tions may be made in the manner of combining the ingredients above'indicatcd and I do not limitmyself to the exact proportions herein set forth, nor to the precise character of the ingredients specified.

My invention-comprises, as stated, a paste softening agent, an aqueous carrier for said agent, and a penetrating compound or material, sopropor tipned-as to be safely used near painted surfaces. I have found" that ordinary aqueous solutions of' various' adhesive-softening agents greatly lack in penetrating properties. Water for instance may be applied to'a heavy coating of Wall paper, particularly the more expensive or highly surfacedvarieties of paper, for several hours time Without penetrating to the adhesive. The addition of a penetrating agent, such as an alcoholic body, overcomes this difficulty and affords a commercially useful com position. Allied compounds, suchas acetone and various other ketones, as well as various esters, such as ethyl acetate kand the like.

composition acid and may acidify the composition by the use of mineral acids, such as sulfuric, hydrochloric, etc; or organic acids,

such as formic or acetic acids or methyland ethyl-sulfuric acid. While for certain other types of adhesives I prefer to use alkali in very dilute solution, including the hydroxids and carbonates of soda, potash, and ammonia. I may also make use of such alkalis as barium hydrate or lime saccharate, but I prefer ordinarily to use caustic soda or potash.

What I claim is i z The composition for removing Wallpaper consisting approximately of one quart of methyl acetone, one gallon of Water, two

ounces of caustic soda and suflicient common salt to saturate the mixture and thereby sup- 15 press the action of the caustic soda on paint and Varnish. Y

In testimony whereof I have aflixed my signature in presence of two Witnesses.

J. 0. Bosnia, 'JAS. D. REMSEN, 

